Mechanical movement.



F. W. FLUHRER. MECHANICAL MOVEMENT. APPLICATION FILED D110. 30, 1912.

Patented Sept. 15,191&

2 SHEETS-SHEET 1.

Wit/revises:

THE LORRIS PETERS ca, PHOTO-1M0. WASNINGTON. D C

F. W. PLUHRER.

MECHANICAL MOVEMENT. APPLICATION TILED DBO. so, 1912.

Patented Sept. 15, 1914.

2 SHEETS-SHEET 2.

THE NORRJS PETERS CO.. PHOTO-LITHQ. WASHINGTUIAI. D, C

UNrr-nn sra'rns a'rnr omuon.

ram) w. Fri-unsure, or MAYGER, onneon.

MECHANICAL MOVEMENT.

Application filed December 30, 1912. v Senia1No.739,851. v

To all whom it may concern: a I

Be'it known that I, FREDVV. FLUHRER, a citizen of the United States, residing at Mayger State of Oregon, have invented a new and useful Improvement in Mechanical Movements, of which thefollowing is a specification, reference being had to the acoompany-.

ing drawings.

My invention relates, to a class of devices.

tain these objects, as well as other-advan tages, by the construction, combination and arrangement of parts illustrated in "the accompanying drawings which form hereof. I

Figure 1 is a sectional side elevation of a shingle sawing machine with my mechanical movement arranged therein, the carriagebeing shown in full elevation and at its start.

ing point to begin the feed. Fig. 2 is a side elevation of parts of the machine, with the partsfor the mechanical movement shown in the position they assumewhenthe carriage is at its maximum position after finishing the feed,.and opposite to that shown in Fig. 1. Fig; 3 is aside elevation showing similar parts as inFig. 2 and with the controlling arm of my mechanical movement having reached its maximum position, while the carriage has not. Fig. 4 is a side elevation showingthe same parts, but with the guide pin for the controlling arm secured at the lower end of the slot;; in which it is placed. j 1

All the dotted lines in the several figures show the course of the movement of related.

parts. 7 p

My mechanical movement when shown 1n connectlon with a shingle sawlng machme of a slmple type.

Like letters and numerals refer tolike parts throughout. the views.

A is the frame of a shingle sawing main the county of Columbia and a part:

B is a rotatable shaft or arbor mounted on the upper. part of the frame A and this shaft carries a circular saw 5. I

G is a sliding carriage of suitable shape and dimensions to receive and hold a shingle bolt H to the saw 5, and has a bracket E secured to its lower surface. The carriage slides in guides C. i

A rotatable shaft 6 is mounted in bearings at the forward end of the frame. A pulley 7 is rigidly secured on the shaft 6 near its ,end. A crank 8 is rigidly secured ppon the end of the shaft 6 next to the puley 7.

, A rotatable shaft D is mounted in bearings in the lower part of the frame near the pulley 7. .A friction wheel 9 is rigidly secured upon the shaft D in a position to en gage the pulley 7. From the crank 8 a link system extends in a longitudinal direction to a connection with the carriage G. The first member of this systemhis an angled arm 10.

The longitudinal part of this armis pivoted jat its end onthe end of the crank 8 by a pivot pin 10'. A second link 11 is pivoted at one end on the end of ,the vertical part of the arm 10 by a pivot pin 11. Thelink 11 is provided 'withtwo adjusting bolts 12 '12'. A third link 18 is pivoted at one end on the carriage bracket E bya pivot pin 13. The

link 13 has longitudinal slots 14-14 through which pass the bolts 1212. Nuts 1515 are provided to secure the links '11 and l3 together in adjusted position so as to form a single link connection. F is one of two like brackets movable longitudinally inthe frame and secured in the lower partthereof by bolts l6--16. ,G is a rocking pivot shaft mounted in bearings inthe brac :ets F. A right angled controlling arm17 is secured at the end of its longitudinal part on the pivot shaft G. Its vertical part is provided with a slot 18. The arm 10 is provided with a guide pin 19 on its longitudinal part, which pin extends through the slot 18 of the arm17. A nut 20 secures the guide pin in the slot- The controlling arm may be made straight 111 stead of angled, asshown, and eXtendin a direct course; from the rocking shaft to the guide pin.

Y The shafts B and D are connected with any suitable powersource and serve to transmit power to the mechanism of the machine.

It is well known that where a direct connection ismade between the crank and a Specification of Letterslatent. Patented Sept. 15, 19 14.

carriage like here shown, it necessary that the crank throw. beincreased over that of the crank 10 for a like travel ofthe carriage C. It is also well known that with? such ,connection the carriage will travel at an' increasing speed from the Zero start; to

maximum and from thence} to zero at the limit of travel and the same-movement prep 7 vails on the return travel.

It will now be observed; that device takes up [the increasing motion or the link connection on the forward travel, and gives it out on the returii ,athus accomplishinga practically uniform speed of travelifor the carriage while feeding a shingle bolt to thesaw, aIid permitting it to lo'e quickly re:

turned to starting position for'the' next feed",

This arrangement also permits or a" lesser crank throw upon a directc onnecfti'on. Fpr example the rank thro'w'may beX and the carriage travel approximately one zu id oii lia'l f times for my d evic as" illifS trated.

WhileI have;state-t nt e as right angled arm, this construction was followed.

only to aid making a good clear ance of partsof the" machine upon which ll Was then experimenting. A straight a'ri'n from the shaft Gr to t he'g uide pin" 19' will accomplish the same result and it is the length at the direct distance between these points governs either case.

MIn-tt etn attainby it ptttetttaliy uniform tet- I'f ovement; of the carriage, as i11usrtt e'd in Figs. 1, 2' and 3. It W111 be titted? that order to btttttthi result, it is necg e r t arr e de i efxi 1 e r t member of the link system connected with the crank, in order to retain a moveme'nt'of the remaining mate as teeny longitudinal {as possible; To. ohtain a correct adjustment of the arm 1 -7,"it then necessary to secure the guide pin 1 9 tn the am 10 in etetiitetle location; My device permitting er ie-Ste 1 1 crank throw than upon direct movem nts is apparent that a crank'ofcoiivenient length may be chosen; ,It will thenloe observed that Ihave the eater pivot pin 10, the guide pit:

19 and thexlink pivot pin 11 each in an established and fixed osition with relation to 3 each? other andto the controlling arm 17.

It will be nekt apparent that the. arm 10 can be adjusted, eitherby raising ormwer-z ing the pin, 19 in thefslo't 18 of thecontroL' ling em, 17. Also that' this, win vary'the radius of the of travel of the guide pin:

19,- according to the distance Between the rocking shaft G and the guide pin 19, which always constitutes that t -tattle, whether-said, arm l't'be straight q angled, e travel of the carriage Ctwillhe'inclreased or decreased respectivlfi iii proportion the increase or decrease of the said radius: Fig. 4 e31 ranging; fi mechanical q movement for a shmfgle machine, I have found th'at I hibits the, relation where the radius is decreased, I't will also-he seen that if the'rocking sh aft G be moved forward or backward,

it'wil-l shitt the arc of travel of the guide tpin downward-0r upward and proportiona-tely increase or decrease the travel-oi the; carriage; The arm,10 maybe ad usted by movinghoth the'g'iiide pin 19 and the shaft "Gfor the same ad ustment of carriage travel 'andjto facilitate themovementof all-partsi primary object of my invention isto ohtain a speed of the carriage which will ena hleit to feed the shingle bolt to the saw t e eny and uneart ly" sothat a successful cutcaiitentacle-and a fter the same lias been accomplished; to make quickreturn of the feed, thus making the machinemore rapid" and economical in its-went; V 7 A secondary olofet'zt is to make-the arrangement and adjustmentas I'indicate, so that no partswill-i bind or catch; and interfere with orpfleve'Ii-t the smooth and free operation of the machine, and- I particularly of the can riage-niechamsm It-wil-l he noted that guide pi1f19,"h ecause" of its limited" and defined course on the are described, tetem ee the fulcrum for the'link. performsthe function of a lever between the crank the succeeding linksi; It will also he observedthatthefunction of thelink's 11 and 13' isto' aflord means-to ttr= range thepositionof the carriage- C" on the .cltim: I v p V A 1. A mechanism for a gradual forward and quick returnv of a reciprocating meme heron a horizontal plane, comprising a link 'sj stein'consisting of a; first member, a second upper end of guides c with relation toqt'he saw; 1 Finally it willappe'ar, that by the arrangement of; my device, and its proper adjustment, the

practically uniform speedof forward-care triage-travel, and the mete-teed s eed of it's' returr'r can all he practically and satisfietorily ere-determined. It" is these featutesi and? the principles which make them possible I this mechanical movement in my' device.

member having one Lend )ivoted (in-one end and its attached reciprocating" memb en subetatttittliy ts: described:

Having thus described my invention It .jthat I cl'ail ri tt'be'netv in myatttttgement of p 2. A mechanism for a gradual for' aiw'l and a quick return ofa reciprocating member on a horlzontal plane, comprismg a link system consistlng of a first member, a second member of two parts, means to secure said 10 rocking shaft pivotally secured below the link system, means to allow said shaft to be moved longitudinally with the link system and to be secured in a correlated position therewith, a reciprocating arm having its lower end rigidly secured on said rocking shaft, means to pivotally secure the upper end of the reciprocating arm upon the first member of the link system in a correlated position with re spect to said system and its attached reciprocating member, substantially as described.

FRED W. FLUHRER.

Witnesses:

WM. BEE,

JOHN STUCKENBERG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C. 

